Home / 5,415,461.25-8,123,129.85-1,316,805.56

Finding the Fourth Proportional to 5,415,461.25, 8,123,129.85 and 1,316,805.56

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Solution

The fourth proportional to 5,415,461.25, 8,123,129.85 and 1,316,805.56 is: 1,975,193.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415,461.25 : 8,123,129.85 = 1,316,805.56 : x
  2. Step 2: Convert to fraction form
    5,415,461.25/8,123,129.85 = 1,316,805.56/x
  3. Step 3: Cross multiply
    5,415,461.25x = 8,123,129.85 × 1,316,805.56
  4. Step 4: Simplify right side
    5,415,461.25x = 10,696,582,545,865.55
  5. Step 5: Solve for x
    x = 10,696,582,545,865.55/5,415,461.25
  6. Step 6: Final answer
    x = 1,975,193.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.